H2H data updated: 2026-09-03 00:00 UTC

Thomaz Koch vs Allan Stone H2H: 2-1

Thomaz Koch holds a 2–1 lead over Allan Stone in their ATP head-to-head. Across 3 main-draw meetings, Thomaz Koch leads 1–0 on carpet and 1–0 on clay. Most recently, Allan Stone won the 1975 Caracas Wct round of 32 6-2 5-7 6-3.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
2 – 1
3 main draw meetings
Allan Stone
AUS Age 80 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Allan Stone #39 6-2 5-7 6-3 Thomaz Koch #31 Match data Mar 20, 1975* R32 Caracas Wct ATP 250 Hard
Thomaz Koch #31 4-6 6-4 6-2 Allan Stone #39 Match data Mar 14, 1975* R16 Sao Paulo Wct ATP 250 Carpet
Thomaz Koch 6-2 6-2 Allan Stone Match data Jul 11, 1969* R16 Washington Open ATP 250 Clay

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Thomaz Koch #857 #24 0 1,880 199 157 55.9% 0 0 0 0 6 6
Allan Stone #199 #38 0 1,884 245 243 50.2% 0 0 0 0 0 0

Career Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.

Age Thomaz Koch Allan Stone
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
22 — — — — — — — 1968 38–25 60.3% — 1,656 0 0
23 1968 29–17 63.0% — 1,672 0 1 1969 35–20 63.6% — 1,727 0 0
24 1969 34–18 65.4% — 1,796 0 4 1970 15–16 48.4% — 1,686 0 0
25 1970 18–15 54.5% — 1,804 0 4 1971 16–31 34.0% — 1,611 0 0
26 1971 24–13 64.9% — 1,747 0 5 1972 17–30 36.2% — 1,720 0 0
27 1972 19–17 52.8% — 1,706 0 6 1973 34–33 50.7% #60 1,673 0 0
28 1973 5–6 45.5% #204 1,698 0 6 1974 17–18 48.6% #49 1,747 0 0
29 1974 22–12 64.7% #24 1,863 0 6 1975 30–21 58.8% #38 1,848 0 0
30 1975 19–21 47.5% #62 1,768 0 6 1976 12–21 36.4% #103 1,740 0 0
31 1976 15–8 65.2% #58 1,815 0 6 1977 14–15 48.3% #81 1,667 0 0
32 1977 1–6 14.3% #94 1,715 0 6 1978 13–9 59.1% #67 1,799 0 0
33 — — — — — — — 1979 4–4 50.0% #199 1,739 0 0
34 1979 4–7 36.4% #85 1,665 0 6 — — — — — — —
35 1980 7–9 43.8% #49 1,654 0 6 — — — — — — —
36 1981 0–2 0.0% #90 1,630 0 6 — — — — — — —
37 1982 1–5 16.7% — 1,594 0 6 — — — — — — —
38 1983 1–1 50.0% #185 1,585 0 6 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Thomaz Koch Allan Stone
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
22 — — — — — — — — — — — — — — — — — 1968 2 3 5 40.0% 13 12 25 52.0% 23 10 33 69.7% — — — —
23 1968 9 5 14 64.3% 18 9 27 66.7% 1 2 3 33.3% 1 1 2 50.0% 1969 2 2 4 50.0% 14 6 20 70.0% 19 12 31 61.3% — — — —
24 1969 12 6 18 66.7% 12 3 15 80.0% 1 4 5 20.0% 9 5 14 64.3% 1970 1 4 5 20.0% 9 5 14 64.3% 5 7 12 41.7% — — — —
25 1970 12 7 19 63.2% — — — — 1 2 3 33.3% 5 6 11 45.5% 1971 6 8 14 42.9% 6 10 16 37.5% 2 6 8 25.0% 2 7 9 22.2%
26 1971 6 4 10 60.0% 6 3 9 66.7% 5 3 8 62.5% 7 3 10 70.0% 1972 3 9 12 25.0% 0 4 4 0.0% 8 3 11 72.7% 6 14 20 30.0%
27 1972 4 5 9 44.4% 2 4 6 33.3% 7 3 10 70.0% 6 5 11 54.5% 1973 6 7 13 46.2% 11 11 22 50.0% 14 8 22 63.6% 3 7 10 30.0%
28 1973 4 4 8 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — 1974 3 5 8 37.5% 3 2 5 60.0% 4 3 7 57.1% 7 8 15 46.7%
29 1974 4 2 6 66.7% 12 7 19 63.2% 3 2 5 60.0% 3 1 4 75.0% 1975 17 9 26 65.4% 4 4 8 50.0% 2 2 4 50.0% 7 6 13 53.8%
30 1975 1 4 5 20.0% 12 11 23 52.2% 0 2 2 0.0% 6 4 10 60.0% 1976 2 4 6 33.3% 2 3 5 40.0% 5 4 9 55.6% 3 10 13 23.1%
31 1976 3 1 4 75.0% 4 4 8 50.0% — — — — 8 3 11 72.7% 1977 5 5 10 50.0% 0 1 1 0.0% 9 7 16 56.3% 0 2 2 0.0%
32 1977 0 2 2 0.0% 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0% 1978 1 2 3 33.3% — — — — 10 5 15 66.7% 2 2 4 50.0%
33 — — — — — — — — — — — — — — — — — 1979 1 2 3 33.3% 0 1 1 0.0% 3 1 4 75.0% — — — —
34 1979 1 3 4 25.0% 3 4 7 42.9% — — — — — — — — — — — — — — — — — — — — — — — — —
35 1980 0 1 1 0.0% 3 4 7 42.9% 1 3 4 25.0% 3 1 4 75.0% — — — — — — — — — — — — — — — — —
36 1981 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
37 1982 — — — — 1 3 4 25.0% — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — —
38 1983 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 57 46 103 55.3% 75 55 130 57.7% 19 23 42 45.2% 48 33 81 59.3% — 49 60 109 45.0% 62 59 121 51.2% 104 68 172 60.5% 30 56 86 34.9%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Thomaz Koch Allan Stone
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
22 — — — — — — — — — — — — — — — — 1968 1657 115.2 — — — — -149 -115 +82 59.4% +0.68 5–7 (42%) — — +1.11
23 1968 1672 129.3 — — — — -67 +38 -163 61.0% +1.12 5–9 (36%) — — +0.27 1969 1727 125.7 — — — — -172 -3 +49 58.4% +0.69 9–6 (60%) — — +2.08
24 1969 1796 127.3 — — — — +69 +56 -315 60.8% +0.65 10–7 (59%) — — +3.64 1970 1686 133.4 — — — — -153 +110 -10 49.4% +0.10 1–3 (25%) 0–4 (0%) — -1.41
25 1970 1804 127.6 — — — — +60 — — 53.9% +0.49 9–1 (90%) 0–2 — +1.66 1971 1611 134.6 — — — — -9 +62 -22 37.9% -0.50 3–11 (21%) 5–10 (33%) — -3.09
26 1971 1748 129.9 — — — — +105 +80 -167 65.2% +0.90 3–6 (33%) 7–0 (100%) — +4.08 1972 1720 144.1 — — — — -62 -102 +51 43.5% -0.33 3–10 (23%) 11–12 (48%) — -4.08
27 1972 1706 128.0 — — — — +63 +56 -87 50.6% +0.08 3–6 (33%) 5–6 (45%) — +1.16 1973 1674 128.9 — — — — -49 -62 +117 52.6% +0.37 8–16 (33%) 10–17 (37%) — +1.38
28 1973 1698 118.0 — — — — +46 — — 52.0% -0.12 1–2 (33%) 3–0 (100%) — -0.13 1974 1747 136.3 — — — — -51 -91 +27 51.2% -0.06 1–7 (13%) 6–9 (40%) — -1.79
29 1974 1863 142.6 — — — — -34 -6 -203 61.5% +0.43 5–5 (50%) 7–2 (78%) — -2.09 1975 1849 143.5 — — — — +36 -171 -117 56.7% +0.24 9–6 (60%) 8–8 (50%) — -1.90
30 1975 1769 140.3 — — — — +80 +16 — 49.5% +0.08 9–8 (53%) 4–5 (44%) — -1.45 1976 1740 146.3 — — — — +15 -49 +7 42.2% -0.40 3–7 (30%) 6–4 (60%) — -3.31
31 1976 1816 127.2 — — — — +53 -51 — 60.7% +0.64 5–2 (71%) 3–3 (50%) — +3.43 1977 1667 122.8 — — — — +13 — +61 52.5% +0.48 4–7 (36%) 2–5 (29%) — +2.67
32 1977 1715 108.6 — — — — +35 — — 31.8% -1.27 1–3 (25%) 1–1 — +0.02 1978 1799 140.3 — — — — -104 — +61 54.7% +0.36 7–4 (64%) 3–3 (50%) — -1.35
33 — — — — — — — — — — — — — — — — 1979 1739 114.2 — — — — -80 — +136 47.1% +0.18 1–0 1–1 — +1.08
34 1979 1665 115.2 — — — — +30 +52 — 42.3% -0.85 1–3 (25%) 1–0 — +0.07 — — — — — — — — — — — — — — — —
35 1980 1654 135.1 — — — — +61 +52 -47 46.3% -0.24 1–3 (25%) 3–2 (60%) — -0.22 — — — — — — — — — — — — — — — —
36 1981 1630 99.5 — — — — — — — 0.0% -2.75 — — — -0.20 — — — — — — — — — — — — — — — —
37 1982 1595 108.2 — — — — — +58 — 21.4% -2.21 0–1 0–1 — -0.55 — — — — — — — — — — — — — — — —
38 1983 1586 102.5 — — — — — — — 50.0% +0.75 — — — +0.52 — — — — — — — — — — — — — — — —
Career — 1881 136.9 — — — — +50 +30 -156 55.5% +0.38 53–56 (49%) 34–22 (61%) 101.5 +2.93 — 1884 138.6 — — — — -30 -36 +54 51.4% +0.20 54–84 (39%) 52–73 (42%) 89.1 -1.79

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.